My youngest put permanent marker all over my cabbage patch kid doll faces and I found this info and was able to save my cabbage patch kid dolls that I had since I was a little girl:)
I used the hairspray trick & it worked like a charm:)
There are a few things you can try to do to remove the ink pen markings. Try them in this order until you get the desired results.
1. Try some hairspray. Spray it on the spots and see if you can rub it clean.
2. Mr Clean Magic Eraser. Wet and scrub lightly. Many times this will remove the ink spots. It is also great for getting the oily residue off your doll. Be careful around face paint and eyes.
3. Oxy10 Zit Cream. This is a bleaching method to remove the stain. It takes some time to work. Dab a small amount on the stain. Allow this to sit for 24 hours. wash off. if it has not gone away repeat over the course of a week. Sometimes allowing the doll with Oxy to sit in a sunny sport will help the creams bleaching powers.
4. If none of the above work she will need to go to the doll hospital for a limb replacement. I would only do this if it really bothers you.
Many of your questions on this type of thing and more can be answered by collectors and parents at AGPlaythings.com.
Good Luck with your cleaning!